The Bachelorette: Who Should Be The Final Two?

Emily Maynard has narrowed her field of prospective suitors down to three: Jef, Sean and Arie. And it doesn't look like she'll have an easy time with letting one guy go on Monday night's episode of The Bachelorette.

The foursome travel to the island of Curacao, where Maynard raves about Sean on camera. "Sean does a million things a day to tell me that he's the one for me," she says in an exclusive preview of the new episode. "But I need to know more. I can't go through this and fall in love and have it not work again."

She's expressed similar feelings for Jef, with whom she finds common ground. "Just like me, there are two sides to Jef and I love that we can bond over so many different things," Maynard blogged for PEOPLE.com.

As for racecar driver Arie, "I saw a different side of Arie after meeting his family and have an even bigger soft spot in my heart for him," she blogged.